Guard for ice-cream freezers.



J. D. WILLIAMS.

GUARD FOR ICE CREAM FREEZERS.

APPLICATION FILED AUG.9. 1913.

1 1 21 ,439, Patented D66. 15, 1914.

attorneys HE NORRIS PETERS C0,. FHOTO-LI1HO.. WASHING for! D. c.

' to which'it]appertains to make and use the UNITED .STATE'S PTE QFFICE JOH wI LImVisI-Qr WILKES-:BA'RRE, 'PENNSLYLVANTA.

GUARD For, 1e12-oaniiifrminzmes tain -newand useful Improvements in Guardsgfor Ice-Cream Freezers; and I do hereby declare the following tobe a full,

clear, and exact description of the invention,

such as" will enable others skilled in the art same;

' This invention relates to protectors or guards for ice cream freezers andthelike,

and an object of the invention is to provide an adjustable guard which may be inserted into the freezer and then expanded until the sides of the guardengage the walls of the freezer. j A further object of the invention is to provide a guard having an expanding central portion-thereof a boss 2, which periphery with means for keeping the periphery; smooth and free from points or serrations which may be caused by "the extending corners of the several expanding members. I

A further object of the invention isto a provide a guard having a handle and backing plate so arranged as to facilitate the parts which, will be hereinafter f'ully' described and claimed. I 3 e p In the drawlngs, where similar reference characters designate corresponding parts:

Figure is a top plan view of the guard, the same belng 1n contracted pos tion; F 1g; 21s a bottom plan view of the guard in extended position; Fig. 3 is a vertical section through the handle; Fig. 4: isan enlarged detail view ofthe bottom of the handle and adjacent parts.

It is found that when ice cream cans stand overnight or for any length of time, there forms on "the walls of the freezer T a" coat of ice which must b e removed before cream can be served to prevent mixing of the ice and cream. Ordinarily, a spatula or scoop 1s used for the removal of the ice,but the use of these implementsis usually attended by some falling of the ice into the cream.

. ,The present, invention aims, to provide j I j j a guard which may be lowered tothe of eachofthe sectors. These sectors I' Q Specification of Letters Patent. Patented DQc, 15, 1914, Application'filed August 9,1913. seriainb. vseooo. 1

of the cream and then expanded to. cover the 1 cream completely, after which the ice may be removed by aspatula orfthe like'as usual, thuspreventmg me from fal-lingin'to the cream.

The general embodiment of the invention comprises a slotted'plate carrying a tube throughwhich passes the rod of a rotatably mounted handle, the lower end ofwhich rod is connectedto expandmg sectors by means of lmks, the expanding sectors being provided with means for guiding the same in the slotsformed in the plate." Asfldescribed hereinafter, the slots formed in the plate bear-such a relationto the handlerod and links that the central portions of the exposed posed edge of the sectors.

Referring to the drawings, it will'be'seen that a plate 1 has extending from the upper may receive and have rigidly secured thereto a tube 3 through which passes a rotatable rod 4. The tube 3 may be secured rigidly to the boss, or as shown in the drawings-the lower end of said tube may be threadedas' at 5; to be engaged by the threads" 6 out upon the bore of the boss 2, there being provided "aset screw 7 through the reduced neck'p'ortion of the boss for holding the tube se- I edge of the sectors "engage adjacent sides 1 of the can before the pointed ends" of the excurely to said boss and plate. Theupper' end of the rod l isenlarged'fi)- forma shoulder 8 adjacent the upper end of the tube 3, there being a handle 9 formed in any-approved manner upon the handle'or ll is provided with a flange -12 beyond [which t the reduced end 10 extends and against which rests a cotter pin 13- passing through the" projecting end 10. 'Theobject in having the end 10 squared is to require the sleeve 11 to turn whenever the handle 9" is turned, this turning being independent of the position of the tube 3 and the-plate 1.

Pivotally connected to the flange 12 are several links 141-, each one of which is connected to the-inner vertex of a circularly triangular sector l5 formed substantially as shown in the drawings and connected to the 11111:14 by means of a head '16 which is received by a dished portion 17 on theinner "-rod 4. The lower end of the'rod 4 is provided with a'reduced squared portion -IO arealso provided with pins 18'having heads 20 which guide" the pins 18" within the slots 19 formedyin the plate 1. provided with as many of these slots 19 as there are sectors and links, and the objectot the slots is to guide each sector as the same moves outwardly; While the sectors are in the form of circular triangles, yet I \fvi-sh -it ;understood that other convenient foi"'ms=of sectors may be used so long asthe 'outwardlyextendin'g edge is arcuate, and

theterm,circularly triangular is used with this understanding. I In order toprevent the outer corners 21 l of the sectors from extending beyond the circumference of the expansible circle formed by the outer edges of the sectors in any extended; position, the slots '19- are curved as indicated in the top plan shown '-in- Fig. 1, thecurvature being such with respect to the length of the links and the distancebetween the heads 16 and pins ls that "the endsiill remain under the curved edge eitheadJacent sector. C25

The device is designed for the purpos ofuemoving ice which forms over night upon the walls of a partially filledice'cream can andjthe'methodof operation'is to turn the handle. 9 while-holding the tube 3 in the {hand in such a way asto contractthe guard sector's, after which the same may be lowered into the cream can until the sectors V rest on top of the cream, then by grasping the same when the ice can be scraped from edges of the guard will lie thetop of the ca'n,-it may be further expanded, so that any ice which may be near "enough to the edge to fall off, will fall outside ofthe cream can, and not inside. Of course i-fthe ice which is formed upon the walls of-the cream can be not'very-solid, it

will be possible to insert the guard to the level. of the cream and after expanding the same the manner already described, lift the walls.

It will be most desirable to .make the guard; for use with a given size of cream can, in which case the variousparts may be proportioned so that when the handle is turned to'extend the periphery of the guard the required amount the several arcuate practically in thecircumference of a circle.

By having the slots 19 and the actuating The plate 1 is y from said rod as the central portion The; ordinary spatula is used for members for the sectors properly proport1oned, the central portions of the exposed arcuate edges-oi the sectors may move in a line substantially radial from the rod 4,

while the outer corners of saidsectors, will move in non-radial Iinesand therefore for a given turn of the rod 4, will not be so far of the outer edge.

l'Vhile' the guard or protector has'lbeen shown as provided with sectors on the bottom of the plate 1 yet'- I realize thatother v dispositions of the expandingmembers may be had with the same results attending, the

use of the form disclosed; and Lwish it also to be understood that the method of securing the rod a to the several sectorsand of securing the same against, l ongitu-dinal movement within the t'ubeL3- may be varied from that shown in the drawings without departing from thespiritof the invention. Having thus described the invention, what is claimed as'new is: p p j I p l. A guard comprising aiplat'e, a member rotatably mounted- .withrespect to the plate.

a; plurality of overlapping sectors having the form of circular triangles, means-connectingjthe rotatable member witheach of.

the sectors. adapted to move the latter in substantially radial lines as-therotatable member revolves, projections carried-by the sectors and means formed in the slate-adapted; to receive the projections to guide the central portion of the outer arcuateside of each of the sectors substantially radially as,

the sectors move.

2. A guard comprising, a plate; a member rotatably mounted with respect to the plate, 7 r

a plurality of sectors having arcuateiout'er edges, links connected to the rotatable mem-.

,ber, said links connected: to theinner .ver-

tices of the'sectors, guide means securedto the plate and engaging the sectors side means adapted to guide the sectors to move.

radially as the rotatablemember is rotated.

3-. A guard comprising a plate,ra rotatable member, aplurality of sectors having outer arcuate edges, means connecting: the

rotatable member \vith 'thesectors adapted I to move the sectors in substantially radial lineswhen the rotatable member rotates, guide pinscarriedby thesectorsand cl lrved receive the guide pins, the concave side of the curved slots being. toward-the. rotatable member. I p v In testimony whereof l aiiix my signature in presence of two witnesses JOHN n IL I-AMS,

Witnesses-1' 1 I I HGA-TI-IERINE M KA'NE v W. J. TREMBATH.

I "6615a;atna ateia'may'unearne n: n sse can; t redressin eawcammisfamer a time.

' wfimn tamnzo'i" 1 g'uide slots formed in the plateadapted to, 

